A Lightning cable or a Lightning-plug dock bought for an iPhone 14 or earlier will not connect. A USB-C cable alone is not enough for fast charging either; the adapter has to support it.
These sit in the same charging cables aisle and are confirmed for a different exact model. We have no published answer saying any of them fits iPhone 15, so treat them as unverified for this device rather than as a fit.
Apple Lightning to USB Cable (1 m)Confirmed for iPhone 14, iPhone 14 Plus, iPhone 14 Pro. Not confirmed for iPhone 15.
Apple USB-C to Lightning Cable (1 m)Confirmed for iPhone 14, iPhone 14 Plus, iPhone 14 Pro. Not confirmed for iPhone 15.
JETech 30-Pin USB Sync and Charging CableConfirmed for iPhone 4s, iPhone 4. Not confirmed for iPhone 15.
KabelDirekt USB-C to 30-Pin CableConfirmed for iPhone 4s, iPhone 4. Not confirmed for iPhone 15.
Coming from an older model
Why a previous-generation charging cable may fail here
iPhone 15 replaced the Lightning connector with USB-C. Everything that plugs into the phone changed with it.
Cases, screen protectors, and MagSafe accessories are unaffected by the connector change; they depend on the body, which follows the usual generational sizing. Charging cables and any accessory with a captive Lightning plug do not carry over.